Abstract
Properties of cotton fabrics grafted with acrylic acid in 6-16% were examined and compared with carboxymethylated cotton fabrics previously studied. In the case of the grafting by electron beam irradiation, the decrease in the tensile strength of the warp yarns of the grafted fabrics was slight. Moisture regain was somewhat increased by the acrylic acid grafting, although not so much as carboxymethylation. Dyeability for basic and cationic dyes was remarkably increased by acrylic acid grafting. The light fastness of some basic dyes and a cationic dye, Sumiacryl Red F-GTL on the grafted cotton was good, but that of a cationic dye, Estrol Brilliant Blue N-3RL was poor. Discoloration in laundering was severe in any case. Dyeability for direct and reactive dyes were lower than the untreated cotton fabric. These dyeing characteristics of the acrylic acid grafted cotton fabrics were similar to the carboxymethylated cotton. But in the case of artificial soiling using carbon black dispersion, soiling was higher and soil removal was lower than the untreated cotton fabric, dissimilar to the carboxymethylated cotton.
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